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HB Construction
Experienced extension builder ready to quote for your work. HB Construction is the best extension builder in SG5. No obligation free quotes and man...
"Build a dormer loft conversion" - HITCHIN, job posted 15/11/26
WILLMOTT DIXON CONSTRUCTION LI
Need an Extension Builder in SG5? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension buildering jo...
"Kitchen extension" - HITCHIN, job posted 03/06/26
M SPINDLER CONSTRUCTION LTD
Need an Extension Builder in SG5? M SPINDLER CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...
"Side return extension" - SG4, job posted 01/03/26
£44/hr
£301/day
M P BUILDING LIMITED
M P BUILDING LIMITED is an established and experienced local extension builder in SG5. Please contact us for a free, no obligation quote and compet...
"Single storey extension" - LETCHWORTH, job posted 30/05/24
£23/hr
£213/day
L P L Property Services Limited
Need an Extension Builder in SG5? L P L Property Services Limited has been helping local clients (20 mile radius) with their extension buildering j...
£42/hr
£295/day
Specialist Building Refurbishm
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG5. No obligation free...
£44/hr
£291/day
David Douglas Developments
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
£43/hr
£286/day
MG Design & Build
Realise Your Luxury Dream Home With The Design And Build Partner You Can Trust.At MG Design & Build we have over 25 years of experience in the cons...
£43/hr
£271/day
Gilbert & Gregson Construction Ltd
Need an Extension Builder in SG5? Gilbert & Gregson Construction Ltd has been helping local clients (20 mile radius) with their extension builderin...
£41/hr
£266/day
Draincall Services Ltd
Draincall Services Ltd is a trusted extension builder serving customers in SG5 and the surrounding area. Contact us to today to get a competitive q...
£38/hr
£245/day
Oval Construction
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
£44/hr
£293/day
BCH3 Projects & Joinery Ltd
Our building services company, BCH3 Projects & Joinery Ltd , has over 33 years’ of experience and has been helping customers in Hitchin and the s...
Compare SG5 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Letchworth | £44 | £283 |
| Extension Builders near North Hertfordshire | £44 | £283 |
| Extension Builders near Hitchin | £43 | £283 |
| Extension Builders near Stevenage | £44 | £282 |
| Extension Builders near Biggleswade | £41 | £268 |
| Extension Builders near Mid Bedfordshire | £42 | £276 |
| Extension Builders near Luton | £42 | £279 |
| Extension Builders near Ampthill | £38 | £258 |
| Extension Builders near Harpenden | £45 | £282 |
| Extension Builders near East Hertfordshire | £44 | £289 |
Job estimates from extension builders near you
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Build a timber frame extension - £26,232

Garden office - £10,232

Granny annexe - £87,232

Build a flat roof extension - £22,232

Convert a Garage - £16,232

Hip to gable loft conversion - £42,232

Convert a bungalow loft - £29,232

Build a dormer loft conversion - £42,232

Build a swimming pool - £81,232

Build a Mansard loft conversion - £52,232

Concrete foundations - £6,482

Underpin a building - £17,732

Two storey extension - £88,348

Convert a basement - £40,110

Side return extension - £44,110

Loft conversion - £35,925

Garage - £18,732

Single storey extension - £59,640

Outbuilding - £10,232

Install an RSJ - £2,432

Build a kitchen extension - £42,232
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